>Not sure why you're writing me privately... Sorry - didn't know about existance of this particular list ... I am new in the area ... - my sincere apologies ! (I hope I will be excused - at least I was not soliciting anything but just info and advise, for which in my idealistic judgement there is no money equivalent, since those are ... priceless. Of course, this is just my private view and other people might have different opinion on this subject ). In http://www2.lm-sensors.nu/~lm78/cvs/i2c/doc/summary I see: .. Adapter drivers --------------- .. i2c-rpx: RPX board Motorola 8xx I2C device (uses i2c-algo-8xx) (NOT BUILT BY DEFAULT) .. Does above comment relates to 2.4 or 2.6 or both ? As it was discovered, 2.6 distribution lacks (as far as ppc 8xx is concerned) both: i2c-algo-8xx.h and i2c-algo-8xx.c files, which are present in 2.4 . Tom Rini suggested to me to bring both files into Linux 2.6 and to merge i2c-rpx.c with i2c-algo-8xx.c into one file (placing it it under the busses subdirectory ? - AP ) - any opinion on that ? Thanks, Best Regards, Alex -----Original Message----- From: Mark M. Hoffman [mailto:mhoffman at lightlink.com] Sent: Sunday, December 19, 2004 10:01 AM To: Povolotsky, Alexander Cc: Sensors Subject: Re: Linux 2.6.10-rc3 for 8xx with I2C config enabled fails ... Hello Alexander: * Povolotsky, Alexander <Alexander.Povolotsky at marconi.com> [2004-12-18 10:57:38 -0500]: > Hi Mark, Not sure why you're writing me privately... > I have FreeScale (Motorola) 8xx custom board with single 24C02 I2C EEPROM, > connected to the I2C bus. > > Building Linux (latest and greatest ;-) ) 2.6.10-rc3 FAILS for 8xx with I2C > config enabled - see attached below - > but it works in Linux 2.4 . > > So I want to try to port 8xx i2c bus driver code from the 2.4.26 (which > works !) to Linux 2.6 ... > > In Linux 2.6 distribution I see: > > .../drivers/i2c/busses and .../drivers/i2c/algos > > I do not see the same subdirectories in the Linux 2.4 distribution ... > > Is there any documentation (or may be you could kindly explain to me) > what was the idea behind reorganizing drivers sub-directories between 2.4 > and 2.6 ? > It looks like those changes are beyond simply 'cosmetic' improvements ? - am > I correct ? AFAIK, the directory org was just cosmetic. > - I would highly appreciate this answer, since it would help me to attempt > to try make it work in 2.6 ! If you haven't already, take a look here for documentation: http://secure.netroedge.com/~lm78/docs.html And if you have any more questions, please send them to the sensors mailing list which I've CC'ed. BTW: there's no need to subscribe, the list is open. > -----Original Message----- > From: Jean Delvare [mailto:khali at linux-fr.org] > Sent: Tuesday, December 14, 2004 4:38 AM > To: Alexander.Povolotsky at marconi.com; greg at kroah.com > Subject: Re: 8xx i2c drivers (cross)compilation errors on Linux 2.6.8 > > On 2004-12-14, Alexander Povolotsky wrote: > > > Hi, > > > > I have the following .config setup: > > (...) > > CONFIG_I2C_RPXLITE=y > > (...) > > > > Originally I was getting error: > > CC drivers/i2c/busses/i2c-rpx.o > > drivers/i2c/busses/i2c-rpx.c:20:32: linux/i2c-algo-8xx.h: No such file or > > directory - why I am missing it - any hint ? > > Hm, looks like the 8xx i2c algorithm was never ported to Linux 2.6. Greg, > how come that the RPX adapter driver is present in the tree and the > algorithm it depends on isn't? > > > So I copied the i2c-algo-8xx.h file from Linux 2.4.26 distribution ... > > could I use it ? > > (if not - could you send me the correct i2c-algo-8xx.h file ? - TIA !) > > I don't think it'll work. The header file is one thing, the algorithm > driver is another and you would need to port both (they proabbly won't > work out of the box due to important changes in the i2c subsystem > between 2.4 and 2.6 kernels). Also, obviously the RPX adapter driver > couldn't be used so far so it was possibly never tested. There will > probably be much porting and debugging work if you want to get it to > work. > > Greg, could it be that an arch-specific (m68k? don't know what this > rpx/8xx thing is) variant of the Linux tree already has the i2c-algo-8xx > driver ported to 2.6? We probably want to import it into the main tree > if this is the case (having adapter drivers that won't compile doesn't > sound good...) > > Alexander, at any rate, there's not much I can do myself, as I don't > have compatible hardware to port/test/debug the i2c-algo-8xx and i2c-rpx > drivers. Sorry. Regards, -- Mark M. Hoffman mhoffman at lightlink.com
